Process Controls CONTROL LOOP DIAGRAMSFigure 7 Takeoff PointFeedbackControlSystemBlockDiagramFigure 8 shows basic elements of a feedback control system as represented by a block diagram.The functional relationships between these elements are easily seen. An important factor toremember is that the block diagram represents flowpaths of control signals, but does not representflow of energy through the system or process.Figure 8 Feedback Control System Block DiagramRev. 0 Page 9 IC-07